[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: wtb: original apple ][ broken as-is for parts
Liam Busey wrote:
>
> Tristan Mumford wrote:
>> Liam Busey wrote:
>>
>
> -snip-
>
>>
>> Entirely off the shelf? Good to know. I'm hopefully getting hold of a
>> rotten ][ I had in the next week or so. My initial intent was just to
>> grab it to take its mockingboard for my //e platinum. But then I started
>> to think I may fix it up a little and use it for a bbs or some kind of
>> esoteric online content.
>> And sorry, it is one thing I won't part with easily if you were
>> wondering.
>
> I'm not after you rotten ][. My moldy ][+ would get jealous. ;)
I got given the ][ in '99 (i think) after a cheap secondhand notebook I
purchased violently exploded. Ex Telstra equipment. They replaced a NiCad
clock battery with a big lithium. As we all know they don't like being
charged.
>
> Well there are masked ROMs, a character generator, and a keyboard
> encoder but those can all be worked around.
>
> The biggest issue with the II/ II+ is that for some reason Apple
> decided to socket ever single chip on the motherboard (IIRC ~120
> chips). While on the surface it may seem to be very convenient for
> repairs, every one of those sockets is a weak or intermittent
> connection waiting to happen. On a well kept machine this is no
> problem. On a machine that's been sitting in someone's basement for 25
> years, well .... AARRGHHHHH!!!!!! Tarnished chips and sockets are a
> PITA!
Try a leaky shed for 6 years.
I'm going to do a reseat anyway.
The main issues are the floppy drives and a blown resistor on the mainboard.
The floppy drives instantly scratch the life out of disks. And as for the
blown resistor, I don't recall where it was. I just know it made operation
a little unstable.
>
> Glancing at your website, you seem to be the tinkering type. Old Apples
> are great for that. They're simple and very open. There's a book called
> "Understanding the Apple 2" by Jim Sather that describes the Apple II/
> II+ circuit in detail. It's very popular with this newsgroup. You can
> find a PDF of it in the Apple manual section of http://1000bit.org.
> There's also a wealth of interfacing books for the Apple but
> unfortunately most haven't made there way online yet.
Thankyou for that morsel of information. Very useful indeed.
I am the tinkering type. Always have been.
My site is out of date right now. My project hit a dead end. A fault I can't
diagnose with my equipment. I'm going to redo the board from scratch. The
wiring is right, but something isn't working as it should be.
I'm thinking of doing a version of the original adaption of the MicroUSB
board for apple2 on a single board.
Latest stupid idea:
Apple2 on wrong end of house to connect using wired network easily. Why not
USB bluetooth?
--
-----> http://members.dodo.com.au/~izabellion1/tristan/index.html <-----
===== It's not pretty, it's not great, but it is mine. =====